Did you know that leeches have more than 1, 2 or even 10 brains? Did you know the tongue is actually in a different position in the mouth than we imagine? Can you guess why shoelaces on sneakers often untie? Prepare to be amazed because the answers to these burning questions can be quite unexpected.
from BrightSide RSS https://brightside.me/wonder-curiosities/30-unexpected-facts-that-shook-our-world-675960/
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